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Java > Open Source Codes > com > db4o > PrimitiveIntHandler


1 /* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com
2
3 This file is part of the db4o open source object database.
4
5 db4o is free software; you can redistribute it and/or modify it under
6 the terms of version 2 of the GNU General Public License as published
7 by the Free Software Foundation and as clarified by db4objects' GPL
8 interpretation policy, available at
9 http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10 Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11 Suite 350, San Mateo, CA 94403, USA.
12
13 db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */

21 package com.db4o;
22
23
24 /**
25  * improves YInt performance slightly by not doing checks
26  * and by doing the comparison with a substraction
27  * @exclude
28  */

29 public class PrimitiveIntHandler extends YInt{
30     
31     public PrimitiveIntHandler(YapStream stream) {
32         super(stream);
33     }
34     
35     public YapComparable prepareComparison(Object JavaDoc obj) {
36         _currentInteger = ((Integer JavaDoc)obj);
37         _currentInt = _currentInteger.intValue();
38         return this;
39     }
40     
41     private Integer JavaDoc _currentInteger;
42     
43     private int _currentInt;
44
45     public int compareTo(Object JavaDoc obj) {
46         return val(obj) - _currentInt;
47     }
48
49     public Object JavaDoc current() {
50         return _currentInteger;
51     }
52
53     public boolean isEqual(Object JavaDoc obj) {
54         return val(obj) == _currentInt;
55     }
56
57     public boolean isGreater(Object JavaDoc obj) {
58         return val(obj) > _currentInt;
59     }
60
61     public boolean isSmaller(Object JavaDoc obj) {
62         return val(obj) < _currentInt;
63     }
64     
65 }
66
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